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Homaeigohar S, Assad MA, Azari AH, Ghorbani F, Rodgers C, Dalby MJ, Zheng K, Xu R, Elbahri M, Boccaccini AR. Biosynthesis of Zinc Oxide Nanoparticles on l-Carnosine Biofunctionalized Polyacrylonitrile Nanofibers; a Biomimetic Wound Healing Material. ACS APPLIED BIO MATERIALS 2023; 6:4290-4303. [PMID: 37721636 PMCID: PMC10583230 DOI: 10.1021/acsabm.3c00499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/01/2023] [Indexed: 09/19/2023]
Abstract
Multifunctional biohybrid nanofibers (NFs) that can simultaneously drive various cellular activities and confer antibacterial properties are considered desirable in producing advanced wound healing materials. In this study, a bionanohybrid formulation was processed as a NF wound dressing to stimulate the adhesion and proliferation of fibroblast and endothelial cells that play a major role in wound healing. Polyacrylonitrile (PAN) electrospun NFs were hydrolyzed using NaOH and biofunctionalized with l-carnosine (CAR), a dipeptide which could later biosynthesize zinc oxide (ZnO) nanoparticles (NPs) on the NFs surface. The morphological study verified that ZnO NPs are uniformly distributed on the surface of CAR/PAN NFs. Through EDX and XRD analysis, it was validated that the NPs are composed of ZnO and/or ZnO/Zn(OH)2. The presence of CAR and ZnO NPs brought about a superhydrophilicity effect and notably raised the elastic modulus and tensile strength of Zn-CAR/PAN NFs. While CAR ligands were shown to improve the viability of fibroblast (L929) and endothelial (HUVEC) cells, ZnO NPs lowered the positive impact of CAR, most likely due to their repulsive negative surface charge. A scratch assay verified that CAR/PAN NFs and Zn-CAR/PAN NFs aided HUVEC migration more than PAN NFs. Also, an antibacterial assay implied that CAR/PAN NFs and Zn-CAR/PAN NFs are significantly more effective in inhibiting Staphylococcus aureus (S. aureus) than neat PAN NFs are (1000 and 500%, respectively). Taken together, compared to the neat PAN NFs, CAR/PAN NFs with and without the biosynthesized ZnO NPs can support the cellular activities of relevance for wound healing and inactivate bacteria.
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Affiliation(s)
- Shahin Homaeigohar
- School
of Science and Engineering, University of
Dundee, Dundee DD1 4HN, U.K.
| | - Mhd Adel Assad
- Nanochemistry
and Nanoengineering, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, Espoo 02150, Finland
| | - Amir Hossein Azari
- Nanochemistry
and Nanoengineering, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, Espoo 02150, Finland
| | - Farnaz Ghorbani
- Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Chloe Rodgers
- Centre
for the Cellular Microenvironment, University
of Glasgow, Glasgow 11 6EW, U.K.
| | - Matthew J. Dalby
- Centre
for the Cellular Microenvironment, University
of Glasgow, Glasgow 11 6EW, U.K.
| | - Kai Zheng
- Jiangsu
Province Engineering Research Center of Stomatological Translational
Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Rongyao Xu
- Jiangsu
Province Engineering Research Center of Stomatological Translational
Medicine, Nanjing Medical University, Nanjing 210029, China
- Department
of Oral and Maxillofacial Surgery, Stomatological Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Mady Elbahri
- Nanochemistry
and Nanoengineering, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, Espoo 02150, Finland
| | - Aldo. R. Boccaccini
- Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
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Aftab A, Ahmad B, Bashir S, Rafique S, Bashir M, Ghani T, Gul A, Shah AU, Khan R, Sajini AA. Comparative study of microscale and macroscale technique for encapsulation of Calotropis gigantea extract in metal-conjugated nanomatrices for invasive ductal carcinoma. Sci Rep 2023; 13:13474. [PMID: 37596340 PMCID: PMC10439222 DOI: 10.1038/s41598-023-39330-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 07/24/2023] [Indexed: 08/20/2023] Open
Abstract
The encapsulation of plant extract in nanomatrices has limitations due to its adhesion to walls, size control, high cost and long durations that results in low yield. Macroscale and microscale level techniques for development of micro/nanoparticles may impact the encapsulation of plant extract. This study aimed to evaluate the relative efficiency of microscale and macroscale techniques for encapsulation of plant extract, which is not compared yet. Keeping this in view, encapsulation of Calotropis gigantea leaves extract (CaG) was attained in silver-conjugated poliglusam nanomatrices (POL/Ag) to induce apoptosis in invasive ductal carcinoma (IDC) cells. The ethanolic CaG extract was prepared using percolation method and characterized by chemical tests for its active phytochemical compounds. The droplet-based microfluidic system was utilized as microscale encapsulation technique for CaG in nanomatrices at two different aqueous to oil flow rate ratios 1.0:1.5, and 1.0:3.0. Moreover, conventional batch system was utilized as macroscale encapsulation technique consisted of hot plate magnetic stirrer. The prepared nanomatrices were analysed for antioxidant activity using DPPH test and for cytotoxicity analysis using MCF-7 cells. The characteristic peaks of UV-Vis, FTIR and XRD spectrum confirmed the synthesis of CaG(POL/Ag) by both the encapsulation methods. However, microfluidic system was found to be more expedient because of attaining small and uniform sized silver nanoparticles (92 ± 19 nm) at high flow rate and achieving high encapsulation efficiency (80.25%) as compared to the conventional batch method (52.5%). CaG(POL/Ag) nanomatrices found to have significant antioxidant activity (p = 0.0014) against DPPH radical scavenging activity. The CaG(POL/Ag) of the smallest sized formulated by the microfluidic system has also shown the highest cytotoxicity (90%) as compared to batch method (70%) at 80 µg/mL. Our results indicate that the microscale technique using microfluidic system is a more efficient method to formulate size-controlled CaG(POL/Ag) nanomatrices and achieve high encapsulation of plant extract. Additionally, CaG(Pol/Ag) was found to be an efficient new combination for inducing potent (p < 0.0001) apoptosis in IDC cells. Therefore, CaG(Pol/Ag) can be further tested as an anti-cancer agent for in-vivo experiments.
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Affiliation(s)
- Ayesha Aftab
- Department of Biological Sciences, International Islamic University, H10 Campus, Islamabad, Pakistan
| | - Bashir Ahmad
- Department of Biological Sciences, International Islamic University, H10 Campus, Islamabad, Pakistan.
| | - Shazia Bashir
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan.
| | - Saima Rafique
- Department of Physics, Air University, Islamabad, Pakistan
| | - Muhammad Bashir
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan
| | - Tayyaba Ghani
- Department of Metallurgy and Material Engineering, PIEAS, Islamabad, 45650, Pakistan
| | - Asma Gul
- Department of Biological Sciences, International Islamic University, H10 Campus, Islamabad, Pakistan
| | - Atta Ullah Shah
- National Institute of Laser and Optronics (NILOP), Islamabad, 44000, Pakistan
| | - Ranjha Khan
- UCSF/Benioff Children's Hospital, San Francisco, CA, USA
| | - Abdulrahim A Sajini
- Department of Biomedical Engineering, Khalifa University of Science and Technology, Abu Dhabi, 127788, United Arab Emirates
- Healthcare Engineering Innovation Center (HEIC), Department of Biomedical Engineering, Khalifa University, Abu Dhabi, 127788, United Arab Emirates
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Hochheim S, Sampaio NMFM, da Cruz AF, Del Mercato LL, D'Amone E, da Silva BJG, Saul CK, de Oliveira CC, Riegel-Vidotti I. Preparation and Investigation of Thermally Annealed Zein-Propolis Electrospun Nanofibers for Biomedical Applications. Macromol Biosci 2023; 23:e2200524. [PMID: 36852933 DOI: 10.1002/mabi.202200524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/15/2023] [Indexed: 03/01/2023]
Abstract
Zein, a corn-derived protein, has a variety of applications ranging from drug delivery to tissue engineering and wound healing. This work aims to develop a biocompatible scaffold for dermal applications based on thermally annealed electrospun propolis-loaded zein nanofibers. Pristine fibers' biocompatibility is determined in vitro. Next, propolis from Melipona quadrifasciata is added to the fibers at different concentrations (5% to 25%), and the scaffolds are studied. The physicochemical properties of zein/propolis precursor dispersions are evaluated and the results are correlated to the fibers' properties. Due to zein's and propolis' very favorable interactions, which are responsible for the increase in the dispersions surface tension, nanometric size ribbon-like fibers ranging from 420 to 575 nm are obtained. The fiber's hydrophobicity is not dependent on propolis concentration and increases with the annealing procedure. Propolis inhibitory concentration (IC50 ) is determined as 61.78 µg mL-1 . When loaded into fibers, propolis is gradually delivered to cells as Balb/3T3 fibroblasts and are able to adhere, grow, and interact with pristine and propolis-loaded fibers, and cytotoxicity is not observed. Therefore, the zein-propolis nanofibers are considered biocompatible and safe. The results are promising and provide prospects for the development of wound-healing nanofiber patches-one of propolis' main applications.
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Affiliation(s)
- Sabrina Hochheim
- Macromolecules and Interfaces Research Group, Department of Chemistry, Universidade Federal do Parana, Av Cel Francisco H dos Santos, s/n, Curitiba, PR, 81530, Brazil
| | - Naiara M F M Sampaio
- Macromolecules and Interfaces Research Group, Department of Chemistry, Universidade Federal do Parana, Av Cel Francisco H dos Santos, s/n, Curitiba, PR, 81530, Brazil
| | - Anderson Fraga da Cruz
- Laboratory of Inflammatory and Neoplastic Cells, Department of Cell Biology, Section of Biological Sciences, Universidade Federal do Parana, Curitiba, 81530, Brazil
| | - Loretta L Del Mercato
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Eliana D'Amone
- Institute of Nanotechnology, National Research Council (CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Bruno José Gonçalves da Silva
- Macromolecules and Interfaces Research Group, Department of Chemistry, Universidade Federal do Parana, Av Cel Francisco H dos Santos, s/n, Curitiba, PR, 81530, Brazil
| | - Cyro Ketzer Saul
- Department of Physics, Universidade Federal do Parana, Curitiba, 81530, Brazil
| | - Carolina Camargo de Oliveira
- Laboratory of Inflammatory and Neoplastic Cells, Department of Cell Biology, Section of Biological Sciences, Universidade Federal do Parana, Curitiba, 81530, Brazil
| | - Izabel Riegel-Vidotti
- Macromolecules and Interfaces Research Group, Department of Chemistry, Universidade Federal do Parana, Av Cel Francisco H dos Santos, s/n, Curitiba, PR, 81530, Brazil
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Kim D, Park D, Kim TH, Chung JJ, Jung Y, Kim SH. Substance P/Heparin-Conjugated PLCL Mitigate Acute Gliosis on Neural Implants and Improve Neuronal Regeneration via Recruitment of Neural Stem Cells. Adv Healthc Mater 2021; 10:e2100107. [PMID: 34227258 DOI: 10.1002/adhm.202100107] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 05/03/2021] [Indexed: 12/15/2022]
Abstract
The inflammatory host tissue response, characterized by gliosis and neuronal death at the neural interface, limits signal transmission and longevity of the neural probe. Substance P induces an anti-inflammatory response and neuronal regeneration and recruits endogenous stem cells. Heparin prevents nonspecific protein adsorption, suppresses the inflammatory response, and is beneficial to neuronal behavior. Poly(l-lactide-co-ε-caprolactone) (PLCL) is a soft and flexible polymer, and PLCL covalently conjugated with biomolecules has been widely used in tissue engineering. Coatings of heparin-conjugated PLCL (Hep-PLCL), substance P-conjugated PLCL (SP-PLCL), and heparin/substance P-conjugated PLCL (Hep/SP-PLCL) reduced the adhesion of astrocytes and fibroblasts and improved neuronal adhesion and neurite development compared to bare glass. The effects of these coatings are evaluated using immunohistochemistry analysis after implantation of coated stainless steel probes in rat brain for 1 week. In particular, Hep/SP-PLCL coating reduced the activation of microglia and astrocytes, the neuronal degeneration caused by inflammation, and indicated a potential for neuronal regeneration at the tissue-device interface. Suppression of the acute host tissue response by coating Hep/SP-PLCL could lead to improved functionality of the neural prosthesis.
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Affiliation(s)
- Donghak Kim
- KU‐KIST Graduate School of Converging Science and Technology Korea University 145 Anam‐ro, Seongbuk‐gu Seoul 02841 Republic of Korea
- Biomaterials Research Center Korea Institute of Science and Technology (KIST) 5, Hwarang‐ro 14‐gil, Seongbuk‐gu Seoul 02792 Republic of Korea
| | - DoYeun Park
- Biomaterials Research Center Korea Institute of Science and Technology (KIST) 5, Hwarang‐ro 14‐gil, Seongbuk‐gu Seoul 02792 Republic of Korea
| | - Tae Hee Kim
- Biomaterials Research Center Korea Institute of Science and Technology (KIST) 5, Hwarang‐ro 14‐gil, Seongbuk‐gu Seoul 02792 Republic of Korea
| | - Justin J. Chung
- Biomaterials Research Center Korea Institute of Science and Technology (KIST) 5, Hwarang‐ro 14‐gil, Seongbuk‐gu Seoul 02792 Republic of Korea
| | - Youngmee Jung
- Biomaterials Research Center Korea Institute of Science and Technology (KIST) 5, Hwarang‐ro 14‐gil, Seongbuk‐gu Seoul 02792 Republic of Korea
| | - Soo Hyun Kim
- KU‐KIST Graduate School of Converging Science and Technology Korea University 145 Anam‐ro, Seongbuk‐gu Seoul 02841 Republic of Korea
- Biomaterials Research Center Korea Institute of Science and Technology (KIST) 5, Hwarang‐ro 14‐gil, Seongbuk‐gu Seoul 02792 Republic of Korea
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5
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Wacker M, Riedel J, Walles H, Scherner M, Awad G, Varghese S, Schürlein S, Garke B, Veluswamy P, Wippermann J, Hülsmann J. Comparative Evaluation on Impacts of Fibronectin, Heparin-Chitosan, and Albumin Coating of Bacterial Nanocellulose Small-Diameter Vascular Grafts on Endothelialization In Vitro. NANOMATERIALS 2021; 11:nano11081952. [PMID: 34443783 PMCID: PMC8398117 DOI: 10.3390/nano11081952] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/22/2021] [Accepted: 07/25/2021] [Indexed: 12/18/2022]
Abstract
In this study, we contrast the impacts of surface coating bacterial nanocellulose small-diameter vascular grafts (BNC-SDVGs) with human albumin, fibronectin, or heparin–chitosan upon endothelialization with human saphenous vein endothelial cells (VEC) or endothelial progenitor cells (EPC) in vitro. In one scenario, coated grafts were cut into 2D circular patches for static colonization of a defined inner surface area; in another scenario, they were mounted on a customized bioreactor and subsequently perfused for cell seeding. We evaluated the colonization by emerging metabolic activity and the preservation of endothelial functionality by water soluble tetrazolium salts (WST-1), acetylated low-density lipoprotein (AcLDL) uptake assays, and immune fluorescence staining. Uncoated BNC scaffolds served as controls. The fibronectin coating significantly promoted adhesion and growth of VECs and EPCs, while albumin only promoted adhesion of VECs, but here, the cells were functionally impaired as indicated by missing AcLDL uptake. The heparin–chitosan coating led to significantly improved adhesion of EPCs, but not VECs. In summary, both fibronectin and heparin–chitosan coatings could beneficially impact the endothelialization of BNC-SDVGs and might therefore represent promising approaches to help improve the longevity and reduce the thrombogenicity of BNC-SDVGs in the future.
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Affiliation(s)
- Max Wacker
- Department of Cardiothoracic Surgery, University Hospital Magdeburg, 39112 Magdeburg, Germany; (J.R.); (M.S.); (G.A.); (S.V.); (P.V.); (J.W.); (J.H.)
- Correspondence: ; Tel.: +49-391-67-14102
| | - Jan Riedel
- Department of Cardiothoracic Surgery, University Hospital Magdeburg, 39112 Magdeburg, Germany; (J.R.); (M.S.); (G.A.); (S.V.); (P.V.); (J.W.); (J.H.)
| | - Heike Walles
- Core Facility Tissue Engineering, Otto-Von-Guericke University Magdeburg, 39106 Magdeburg, Germany;
| | - Maximilian Scherner
- Department of Cardiothoracic Surgery, University Hospital Magdeburg, 39112 Magdeburg, Germany; (J.R.); (M.S.); (G.A.); (S.V.); (P.V.); (J.W.); (J.H.)
| | - George Awad
- Department of Cardiothoracic Surgery, University Hospital Magdeburg, 39112 Magdeburg, Germany; (J.R.); (M.S.); (G.A.); (S.V.); (P.V.); (J.W.); (J.H.)
| | - Sam Varghese
- Department of Cardiothoracic Surgery, University Hospital Magdeburg, 39112 Magdeburg, Germany; (J.R.); (M.S.); (G.A.); (S.V.); (P.V.); (J.W.); (J.H.)
| | - Sebastian Schürlein
- Department Tissue Engineering and Regenerative Medicine (TERM), University Hospital Würzburg, 97070 Würzburg, Germany;
| | - Bernd Garke
- Institute of Experimental Physics, Otto-Von-Guericke University Magdeburg, 39106 Magdeburg, Germany;
| | - Priya Veluswamy
- Department of Cardiothoracic Surgery, University Hospital Magdeburg, 39112 Magdeburg, Germany; (J.R.); (M.S.); (G.A.); (S.V.); (P.V.); (J.W.); (J.H.)
| | - Jens Wippermann
- Department of Cardiothoracic Surgery, University Hospital Magdeburg, 39112 Magdeburg, Germany; (J.R.); (M.S.); (G.A.); (S.V.); (P.V.); (J.W.); (J.H.)
| | - Jörn Hülsmann
- Department of Cardiothoracic Surgery, University Hospital Magdeburg, 39112 Magdeburg, Germany; (J.R.); (M.S.); (G.A.); (S.V.); (P.V.); (J.W.); (J.H.)
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Homaeigohar S, Monavari M, Koenen B, Boccaccini AR. Biomimetic biohybrid nanofibers containing bovine serum albumin as a bioactive moiety for wound dressing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111965. [PMID: 33812593 DOI: 10.1016/j.msec.2021.111965] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/06/2021] [Accepted: 02/08/2021] [Indexed: 12/13/2022]
Abstract
For the first time, a biohybrid nanofibrous wound dressing is developed via green electrospinning of a blend solution of bovine serum albumin (BSA) (1 and 3 wt%) and polycaprolactone (PCL). In such a system, the components are miscible and interact through hydrogen bonding between the carbonyl group of PCL and the amine group of BSA, as verified by ATR-FTIR. As a result, the biohybrid nanofibers show a superior elastic modulus and elongation (300% and 58%, respectively) compared with the neat PCL nanofibers. The included protein induces a hydrophilicity effect to the PCL nanofibers, notably at the higher BSA content (3 wt%). In contrast to the neat nanofibers, the biohybrid ones are bioactive and encourage formation of biominerals (made of amorphous calcium carbonate) on the surface, after immersion in simulated body fluid (SBF). Based on the WST-8 cell viability tests, NIH3T3 fibroblast cells were seen to properly interact with the biohybrid mats and to proliferate in their proximity. SEM images show that the cells largely adhere onto such nanofibers even more than they do on the neat ones and adopt a flattened and stretched shape. In addition, the live/dead assay and phalloidin/DAPI staining assay confirm large cell viability and normal cell morphology on the biohybrid nanofiber mats after 4 days incubation. Taken together, BSA/PCL nanofibers are able to offer optimum mechanical properties (elasticity) as well as mineralization which can potentially stimulate the wound healing process, and can be considered a suitable candidate for wound dressing applications.
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Affiliation(s)
- Shahin Homaeigohar
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom.
| | - Mahshid Monavari
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Benedict Koenen
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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Namkaew J, Laowpanitchakorn P, Sawaddee N, Jirajessada S, Honsawek S, Yodmuang S. Carboxymethyl Cellulose Entrapped in a Poly(vinyl) Alcohol Network: Plant-Based Scaffolds for Cartilage Tissue Engineering. Molecules 2021; 26:578. [PMID: 33499342 PMCID: PMC7865723 DOI: 10.3390/molecules26030578] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/15/2021] [Accepted: 01/19/2021] [Indexed: 01/01/2023] Open
Abstract
Cartilage has a limited inherent healing capacity after injury, due to a lack of direct blood supply and low cell density. Tissue engineering in conjunction with biomaterials holds promise for generating cartilage substitutes that withstand stress in joints. A major challenge of tissue substitution is creating a functional framework to support cartilage tissue formation. Polyvinyl alcohol (PVA) was crosslinked with glutaraldehyde (GA), by varying the mole ratios of GA/PVA in the presence of different amounts of plant-derived carboxymethyl cellulose (CMC). Porous scaffolds were created by the freeze-drying technique. The goal of this study was to investigate how CMC incorporation and crosslinking density might affect scaffold pore formation, swelling behaviors, mechanical properties, and potential use for engineered cartilage. The peak at 1599 cm-1 of the C=O group in ATR-FTIR indicates the incorporation of CMC into the scaffold. The glass transition temperature (Tg) and Young's modulus were lower in the PVA/CMC scaffold, as compared to the PVA control scaffold. The addition of CMC modulates the pore architecture and increases the swelling ratio of scaffolds. The toxicity of the scaffolds and cell attachment were tested. The results suggest that PVA/CMC scaffolding material can be tailored in terms of its physical and swelling properties to potentially support cartilage formation.
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Affiliation(s)
- Jirapat Namkaew
- Excellence Center for Advanced Therapy Medicinal Products, King Chulalongkorn Memorial Hospital, Pathumwan, Bangkok 10330, Thailand; (J.N.); (N.S.)
| | - Panitporn Laowpanitchakorn
- Biomaterial Engineering for Medical and Health Research Unit, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand;
| | - Nuttapong Sawaddee
- Excellence Center for Advanced Therapy Medicinal Products, King Chulalongkorn Memorial Hospital, Pathumwan, Bangkok 10330, Thailand; (J.N.); (N.S.)
| | - Sirinee Jirajessada
- Biology Program, Faculty of Science, Buriram Rajabhat University, Muang, Buriram 31000, Thailand;
| | - Sittisak Honsawek
- Osteoarthritis and Musculoskeleton Research Unit, Faculty of Medicine, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand;
| | - Supansa Yodmuang
- Research Affairs, Faculty of Medicine, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
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Millán D, Jiménez RA, Nieto LE, Poveda IY, Torres MA, Silva AS, Ospina LF, Mano JF, Fontanilla MR. Adjustable conduits for guided peripheral nerve regeneration prepared from bi-zonal unidirectional and multidirectional laminar scaffold of type I collagen. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 121:111838. [PMID: 33579476 DOI: 10.1016/j.msec.2020.111838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 12/14/2020] [Accepted: 12/22/2020] [Indexed: 11/24/2022]
Abstract
Shortness of donor nerves has led to the development of nerve conduits that connect sectioned peripheral nerve stumps and help to prevent the formation of neuromas. Often, the standard diameters of these devices cannot be adapted at the time of surgery to the diameter of the nerve injured. In this work, scaffolds were developed to form filled nerve conduits with an inner matrix with unidirectional channels covered by a multidirectional pore zone. Collagen type I dispersions (5 mg/g and 8 mg/g) were sequentially frozen using different methods to obtain six laminar scaffolds (P1 to P5) formed by a unidirectional (U) pore/channel zone adjacent to a multidirectional (M) pore zone. The physicochemical and microstructural properties of the scaffolds were determined and compared, as well as their biodegradability, residual glutaraldehyde and cytocompatibility. Also, the Young's modulus of the conduits made by rolling up the bizonal scaffolds from the unidirectional to the multidirectional zone was determined. Based on these comparisons, the proliferation and differentiation of hASC were assessed only in the P3 scaffolds. The cells adhered, aligned in the same direction as the unidirectional porous fibers, proliferated, and differentiated into Schwann-like cells. Adjustable conduits made with the P3 scaffold were implanted in rats 10 mm sciatic nerve lesions to compare their performance with that of autologous sciatic nerve grafted lesions. The in vivo results demonstrated that the tested conduit can be adapted to the diameter of the nerve stumps to guide their growth and promote their regeneration.
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Affiliation(s)
- Diana Millán
- Tissue Engineering Group, Department of Pharmacy, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, 111321 Bogotá, Colombia; Universidad El Bosque, Facultad de Medicina, Colombia.
| | - Ronald A Jiménez
- Tissue Engineering Group, Department of Pharmacy, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, 111321 Bogotá, Colombia; Universidad El Bosque, Facultad de Ciencias, Colombia.
| | - Luis E Nieto
- Facultad de Medicina, Pontificia Universidad Javeriana, Carrera 7 # 40-62 Of 726, Bogotá, Colombia.
| | - Ivan Y Poveda
- Tissue Engineering Group, Department of Pharmacy, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, 111321 Bogotá, Colombia.
| | - Maria A Torres
- Tissue Engineering Group, Department of Pharmacy, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, 111321 Bogotá, Colombia.
| | - Ana S Silva
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Luis F Ospina
- Department of Pharmacy, Universidad Nacional de Colombia, 111321, Av. Carrera 30 # 45-10, Bogotá, Colombia.
| | - João F Mano
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Marta R Fontanilla
- Tissue Engineering Group, Department of Pharmacy, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, 111321 Bogotá, Colombia.
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France LA, Fancey KS. Viscoelastically active sutures - A stitch in time? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 121:111695. [PMID: 33579505 DOI: 10.1016/j.msec.2020.111695] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/26/2020] [Accepted: 10/30/2020] [Indexed: 01/17/2023]
Abstract
We present results to show that a commercially available polypropylene suture filament (Ethicon Prolene), following annealing and tensile creep can, after creep load removal, release viscoelastically stored energy over a period of several weeks. Specifically, over 0.1-1000 h, the suture undergoes a time-dependent contraction of ~4% and, following a short recovery time (~3 min) to a fixed strain, produces a progressively increasing recovery force of ~0.1-1 N. We suggest that this time-dependent energy release may facilitate wound healing by the action of viscoelastically induced mechanotransduction (VIM). Moreover, our recent (published) findings have led to evidence of reduced hydrophobicity from viscoelastically recovering polymeric filaments and speculation that this may emanate from the long-term release of electric charges. Thus, we propose that the latter may enhance the VIM mechanism. In this paper, we report on the direct detection of these charges and the first findings from an investigation involving the presence of cell cultures on Prolene samples that are (i) viscoelastically recovering, (ii) annealed only and (iii) in as-received condition. From (i), the results demonstrate a significant increase in cell motility, with migration towards the suture, compared to (ii) and (iii). This suggests greater stimulation of the wound healing process, an effect which is expected to continue for the duration of the viscoelastic recovery period.
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Affiliation(s)
| | - Kevin S Fancey
- Department of Engineering, University of Hull, HU6 7RX, UK
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10
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Homaeigohar S, Tsai TY, Zarie ES, Elbahri M, Young TH, Boccaccini AR. Bovine Serum Albumin (BSA)/polyacrylonitrile (PAN) biohybrid nanofibers coated with a biomineralized calcium deficient hydroxyapatite (HA) shell for wound dressing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111248. [PMID: 32806254 DOI: 10.1016/j.msec.2020.111248] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/29/2020] [Accepted: 06/29/2020] [Indexed: 01/14/2023]
Abstract
Here, for the first time, a nanofibrous (NF) wound dressing comprising biomineralized polyacrylonitrile (PAN) nanofibers is developed. In contrast to the majority of the currently available nanofibrous wound dressings that are based on natural polymers, PAN is a synthetic, industrial polymer, which has been rarely considered for this purpose. PAN NFs are first hydrolyzed to allow for tethering of biofunctional agents (here Bovine Serum Albumin (BSA)). Later, the biofunctionlized PAN NFs are biomineralized by immersion in simulated body fluid (SBF). As a result, core-shell, calcium deficient hydroxyapatite (HA)/BSA/PAN nanofibers form, that are mechanically stronger (elastic modulus; 8.5 vs. 6 MPa) compared to the untreated PAN NFs. The biomineralized PAN NFs showed promising bioactivity as reflected in the cell biology tests with fibroblast and keratinocyte cells. Hs68 fibroblasts and HaCat keratinocytes were found to be more viable in the presence of the biomineralized NFs than when they were co-cultured with the neat PAN NFs. Such mechanical and biological characteristics of the biomineralized PAN NFs are favorable for wound dressing applications.
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Affiliation(s)
- Shahin Homaeigohar
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058, Erlangen, Germany; Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland.
| | - Ting-Yu Tsai
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei 100, Taiwan
| | - Eman S Zarie
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland; Department of Therapeutical Chemistry, Pharmaceutical and Drug Industries Research Division National Research Centre, Dokki 12311, Giza, Egypt
| | - Mady Elbahri
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland
| | - Tai-Horng Young
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
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11
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Hosseinzadeh S, Nazari H, Sadegzadeh N, Babaie A, Kabiri M, Tasharrofi N, Soufi Zomorrod M, Soleimani M. Polyethylenimine: A new differentiation factor to endothelial/cardiac tissue. J Cell Biochem 2019; 120:1511-1521. [PMID: 30171705 DOI: 10.1002/jcb.27287] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 06/28/2018] [Indexed: 01/24/2023]
Abstract
Among different tissues, endothelial/cardiac types require specific factors to promote myocardial regeneration after occurred injuries. Herein, cardiac stem cells (CSCs) as the major cell population that involved in cardiovascular repair were selected to study the role of polyethyleneimine (PEI) agent on endothelial differentiation. After preparation of electrospun network of PEI with polyacrylonitrile, the related characterizations were carried out including scanning electron microscope (SEM), field-emission SEM, water contact angle, Fourier transform infrared spectroscopy and mechanical properties. Also, the release kinetic of the corresponding agent was studied up to 7 days. The cell differentiation studies were done in the following with 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay, Real-time polymerase chain reaction and immunostaining method. The whole obtained results approved the higher differentiation of CSCs into endothelial/cardiac cells. Finally, it is recommended that the PEI delivering increases the healing potency of CSCs and accordingly the regeneration speed of damaged cardiovascular tissue would be improved.
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Affiliation(s)
- Simzar Hosseinzadeh
- Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hojjatollah Nazari
- Stem Cell Technology Research Center, Tehran, Iran.,Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Ali Babaie
- Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Stem Cell Technology Research Center, Tehran, Iran
| | - Mahboubeh Kabiri
- Department of Biotechnology, College of science, University of Tehran, Tehran, Iran
| | - Noshin Tasharrofi
- Department of Pharmaceutics, Faculty of Pharmacy, Lorestan University of Medical Science, Khorramabad, Iran
| | | | - Masoud Soleimani
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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12
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Li B, Agarwal V, Ho D, Vede JP, Iyer KS. Systematic assessment of surface functionality on nanoscale patterns for topographic contact guidance of cells. NEW J CHEM 2018. [DOI: 10.1039/c7nj04914e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ability of surface topography to influence cellular response has been widely accepted, leading the way towards the development of potential neural prosthetics.
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Affiliation(s)
- Binbin Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan 430070
- P. R. China
- Biomedical Materials and Engineering Research Center of Hubei Province
| | - Vipul Agarwal
- School of Molecular Sciences
- The University of Western Australia
- Crawley WA 6009
- Australia
| | - Dominic Ho
- School of Molecular Sciences
- The University of Western Australia
- Crawley WA 6009
- Australia
| | | | - K. Swaminathan Iyer
- School of Molecular Sciences
- The University of Western Australia
- Crawley WA 6009
- Australia
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13
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Sacks R, Schein G, Isseroff R, Ricotta V, Simon M, Rafailovich M. The Influence of Metalized Graphene Oxide/Reduced Graphene Oxide and Sulfonated Polystyrene on Dental Pulp Stem Cell Differentiation and Protein Adsorption. ACTA ACUST UNITED AC 2017. [DOI: 10.1557/adv.2017.258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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14
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Zheng H, Gao M, Ren Y, Lou R, Xie H, Yu W, Liu X, Ma X. Controlling Gel Structure to Modulate Cell Adhesion and Spreading on the Surface of Microcapsules. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19333-19342. [PMID: 27404911 DOI: 10.1021/acsami.6b05778] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The surface properties of implanted materials or devices play critical roles in modulating cell behavior. However, the surface properties usually affect cell behaviors synergetically so that it is still difficult to separately investigate the influence of a single property on cell behavior in practical applications. In this study, alginate-chitosan (AC) microcapsules with a dense or loose gel structure were fabricated to understand the effect of gel structure on cell behavior. Cells preferentially adhered and spread on the loose gel structure microcapsules rather than on the dense ones. The two types of microcapsules exhibited nearly identical surface positive charges, roughness, stiffness, and hydrophilicity; thus, the result suggested that the gel structure was the principal factor affecting cell behavior. X-ray photoelectron spectroscopy analyses demonstrated that the overall percentage of positively charged amino groups was similar on both microcapsules. The different gel structures led to different states and distributions of the positively charged amino groups of chitosan, so we conclude that the loose gel structure facilitated greater cell adhesion and spreading mainly because more protonated amino groups remained unbound and exposed on the surface of these microcapsules.
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Affiliation(s)
- Huizhen Zheng
- Laboratory of Biomedical Materials Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, PR China
- University of the Chinese Academy of Sciences , Beijing 100049, PR China
| | - Meng Gao
- Laboratory of Biomedical Materials Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, PR China
- University of the Chinese Academy of Sciences , Beijing 100049, PR China
| | - Ying Ren
- Laboratory of Biomedical Materials Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, PR China
- University of the Chinese Academy of Sciences , Beijing 100049, PR China
| | - Ruyun Lou
- Laboratory of Biomedical Materials Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, PR China
- University of the Chinese Academy of Sciences , Beijing 100049, PR China
| | - Hongguo Xie
- Laboratory of Biomedical Materials Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, PR China
| | - Weiting Yu
- Laboratory of Biomedical Materials Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, PR China
| | - Xiudong Liu
- College of Environment and Chemical Engineering, Dalian University , Dalian Economic Technological Development Zone, Dalian 116622, PR China
| | - Xiaojun Ma
- Laboratory of Biomedical Materials Engineering, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road, Dalian 116023, PR China
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15
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Rieger KA, Porter M, Schiffman JD. Polyelectrolyte-Functionalized Nanofiber Mats Control the Collection and Inactivation of Escherichia coli. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E297. [PMID: 28773422 PMCID: PMC5502990 DOI: 10.3390/ma9040297] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 03/28/2016] [Accepted: 04/12/2016] [Indexed: 11/16/2022]
Abstract
Quantifying the effect that nanofiber mat chemistry and hydrophilicity have on microorganism collection and inactivation is critical in biomedical applications. In this study, the collection and inactivation of Escherichia coli K12 was examined using cellulose nanofiber mats that were surface-functionalized using three polyelectrolytes: poly (acrylic acid) (PAA), chitosan (CS), and polydiallyldimethylammonium chloride (pDADMAC). The polyelectrolyte functionalized nanofiber mats retained the cylindrical morphology and average fiber diameter (~0.84 µm) of the underlying cellulose nanofibers. X-ray photoelectron spectroscopy (XPS) and contact angle measurements confirmed the presence of polycations or polyanions on the surface of the nanofiber mats. Both the control cellulose and pDADMAC-functionalized nanofiber mats exhibited a high collection of E. coli K12, which suggests that mat hydrophilicity may play a larger role than surface charge on cell collection. While the minimum concentration of polycations needed to inhibit E. coli K12 was 800 µg/mL for both CS and pDADMAC, once immobilized, pDADMAC-functionalized nanofiber mats exhibited a higher inactivation of E. coli K12, (~97%). Here, we demonstrate that the collection and inactivation of microorganisms by electrospun cellulose nanofiber mats can be tailored through a facile polyelectrolyte functionalization process.
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Affiliation(s)
- Katrina A Rieger
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003-9303, USA.
| | - Michael Porter
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003-9303, USA.
| | - Jessica D Schiffman
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003-9303, USA.
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16
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Zheng H, Li S, Gao M, Ren Y, Zheng G, Xie H, Yu W, Wang X, Ma X. An improved model for exploring the effect of physicochemical properties of alginate-based microcapsules on their fibrosis formation in vivo. RSC Adv 2016. [DOI: 10.1039/c6ra19294g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An effectivein vitromodel established forexploring the effect ofthephysicochemical properties of alginate-based microcapsules on their fibrosis formation.
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Affiliation(s)
- Huizhen Zheng
- Laboratory of Biomedical Materials Engineering
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Shen Li
- Department of Endocrinology and Metabolism
- Dalian Municipal Central Hospital Affiliated of Dalian Medical University
- Dalian 116033
- P. R. China
| | - Meng Gao
- Laboratory of Biomedical Materials Engineering
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Ying Ren
- Laboratory of Biomedical Materials Engineering
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Guoshuang Zheng
- Laboratory of Biomedical Materials Engineering
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Hongguo Xie
- Laboratory of Biomedical Materials Engineering
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Weiting Yu
- Laboratory of Biomedical Materials Engineering
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Xiuli Wang
- Department of Histology and Embryology
- College of Basic Medical Science
- Dalian Medical University
- Dalian
- P. R. China
| | - Xiaojun Ma
- Laboratory of Biomedical Materials Engineering
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
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17
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Kim J, Kim YJ, Bae WG, Jang KJ, Lim KT, Choung PH, Choung YH, Chung JH. Topographical extracellular matrix cues on anticancer drug-induced cytotoxicity in stem cells. J Biomed Mater Res B Appl Biomater 2014; 103:1320-7. [PMID: 25377936 DOI: 10.1002/jbm.b.33316] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 09/01/2014] [Accepted: 10/10/2014] [Indexed: 12/22/2022]
Abstract
In recent years, cell chip-based platforms have begun to show promise as a means of corroborating the findings of in vivo animal tests for cytotoxicity, and perhaps in the future partially replacing the need for such animal models. In contrast to the conventional culture methods, micro- and nanofabrication techniques can be utilized to provide a set of mechanostimulatory signals to the cells that mimic the context of extracellular matrix (ECM) of the tissue in which a particular cell line resides. Here, we report periodic lateral topographic striations, with a pitch ranging approximately from 200 to 800 nm with an intention to mimic a common geometry of fibrils in the ECM such as collagen or elastin, as a platform for investigating anticancer drug-induced cytotoxicity in stem cells. The ECM cues could facilitate perimeter, elongation, and gap junction formation of mesenchymal stem cells (MSCs), which eventually influenced the fate of cells in terms of death and survival against the common chemotherapeutic agent cisplatin. Interestingly, the appropriate inhibition of gap junctions of MSCs on the ECM mimicking substrates could prevent the cisplatin-induced cytotoxicity through the inhibition of the cisplatin-induced 'death signal communication' as compared to that on the flat substrates. Our results imply that nanoscale topography is an important consideration for chip-based cytotoxicity assays, which uniquely enable the consideration and rational design of ECM-like topographic features, and furthermore, that the natural topography of the ECM in the context of stem cell niches may serve as an important indicator for chemotherapeutic agent sensitivity.
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Affiliation(s)
- Jangho Kim
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, 151-742, Republic of Korea.,Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Yeon Ju Kim
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, 443-721, Republic of Korea
| | - Won-Gyu Bae
- School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 301-1202, Republic of Korea
| | - Kyung-Jin Jang
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts, 02115
| | - Ki Taek Lim
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Pill-Hoon Choung
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
| | - Yun-Hoon Choung
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, 443-721, Republic of Korea
| | - Jong Hoon Chung
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, 151-742, Republic of Korea.,Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, 110-749, Republic of Korea
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18
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Kim J, Kim HN, Lang Y, Pandit A. Biologically Inspired Micro- and Nanoengineering Systems for Functional and Complex Tissues. Tissue Eng Part A 2014; 20:2127-30. [DOI: 10.1089/ten.tea.2013.0707] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Affiliation(s)
- Jangho Kim
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Hong Nam Kim
- Division of WCU Multiscale Mechanical Design, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, Republic of Korea
| | - Yvonne Lang
- Network of Excellence for Functional Biomaterials, National University of Ireland, Galway, Ireland
| | - Abhay Pandit
- Network of Excellence for Functional Biomaterials, National University of Ireland, Galway, Ireland
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19
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Castaño O, Sachot N, Xuriguera E, Engel E, Planell JA, Park JH, Jin GZ, Kim TH, Kim JH, Kim HW. Angiogenesis in bone regeneration: tailored calcium release in hybrid fibrous scaffolds. ACS APPLIED MATERIALS & INTERFACES 2014; 6:7512-7522. [PMID: 24754868 DOI: 10.1021/am500885v] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In bone regeneration, silicon-based calcium phosphate glasses (Bioglasses) have been widely used since the 1970s. However, they dissolve very slowly because of their high amount of Si (SiO2 > 45%). Recently, our group has found that calcium ions released by the degradation of glasses in which the job of silicon is done by just 5% of TiO2 are effective angiogenic promoters, because of their stimulation of a cell-membrane calcium sensing receptor (CaSR). Based on this, other focused tests on angiogenesis have found that Bioglasses also have the potential to be angiogenic promoters even with high contents of silicon (80%); however, their slow degradation is still a problem, as the levels of silicon cannot be decreased any lower than 45%. In this work, we propose a new generation of hybrid organically modified glasses, ormoglasses, that enable the levels of silicon to be reduced, therefore speeding up the degradation process. Using electrospinning as a faithful way to mimic the extracellular matrix (ECM), we successfully produced hybrid fibrous mats with three different contents of Si (40, 52, and 70%), and thus three different calcium ion release rates, using an ormoglass-polycaprolactone blend approach. These mats offered a good platform to evaluate different calcium release rates as osteogenic promoters in an in vivo subcutaneous environment. Complementary data were collected to complement Ca(2+) release analysis, such as stiffness evaluation by AFM, ζ-potential, morphology evaluation by FESEM, proliferation and differentiation analysis, as well as in vivo subcutaneous implantations. Material and biological characterization suggested that compositions of organic/inorganic hybrid materials with a Si content equivalent to 40%, which were also those that released more calcium, were osteogenic. They also showed a greater ability to form blood vessels. These results suggest that Si-based ormoglasses can be considered an efficient tool for calcium release modulation, which could play a key role in the angiogenic promoting process.
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Affiliation(s)
- Oscar Castaño
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC) , 08028, Barcelona, Spain
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20
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Mi HY, Jing X, Turng LS. Fabrication of porous synthetic polymer scaffolds for tissue engineering. J CELL PLAST 2014. [DOI: 10.1177/0021955x14531002] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Tissue engineering provides a novel and promising approach to replace damaged tissue with an artificial substitute. Porous synthetic biodegradable polymers are the preferred materials for this substitution due to their microstructure, biocompatibility, biodegradability, and low cost. As a crucial element in tissue engineering, a scaffold acts as an artificial extracellular matrix (ECM) and provides support for cell migration, differentiation, and reproduction. The fabrication of viable scaffolds, however, has been a challenge in both clinical and academic settings. Methods such as solvent casting/particle leaching, thermally induced phase separation (TIPS), electrospinning, gas foaming, and rapid prototyping (additive manufacturing) have been developed or introduced for scaffold fabrication. Each method has its own advantages and disadvantages. In this review, the commonly used synthetic polymer scaffold fabrication methods will be introduced and discussed in detail, and recent progress regarding scaffold fabrication—such as combining different scaffold fabrication methods, combining various materials, and improving current scaffold fabrication methods—will be reviewed as well.
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Affiliation(s)
- Hao-Yang Mi
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI, USA
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, China
- Department of Mechanical Engineering, University of Wisconsin–Madison, Madison, WI , USA
| | - Xin Jing
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI, USA
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, China
- Department of Mechanical Engineering, University of Wisconsin–Madison, Madison, WI , USA
| | - Lih-Sheng Turng
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI, USA
- Department of Mechanical Engineering, University of Wisconsin–Madison, Madison, WI , USA
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21
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Wang H, Bongio M, Farbod K, Nijhuis AWG, van den Beucken J, Boerman OC, van Hest JCM, Li Y, Jansen JA, Leeuwenburgh SCG. Development of injectable organic/inorganic colloidal composite gels made of self-assembling gelatin nanospheres and calcium phosphate nanocrystals. Acta Biomater 2014; 10:508-19. [PMID: 24012604 DOI: 10.1016/j.actbio.2013.08.036] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 08/26/2013] [Accepted: 08/28/2013] [Indexed: 12/20/2022]
Abstract
Colloidal gels are a particularly attractive class of hydrogels for applications in regenerative medicine, and allow for a "bottom-up" fabrication of multi-functional biomaterials by employing micro- or nanoscale particles as building blocks to assemble into shape-specific bulk scaffolds. So far, however, the synthesis of colloidal composite gels composed of both organic and inorganic particles has hardly been investigated. The current study has focused on the development of injectable colloidal organic-inorganic composite gels using calcium phosphate (CaP) nanoparticles and gelatin (Gel) nanospheres as building blocks. These novel Gel-CaP colloidal composite gels exhibited a strongly enhanced gel elasticity, shear-thinning and self-healing behavior, and gel stability at high ionic strengths, while chemical - potentially cytotoxic - functionalizations were not necessary to introduce sufficiently strong cohesive interactions. Moreover, it was shown in vitro that osteoconductive CaP nanoparticles can be used as an additional tool to reduce the degradation rate of otherwise fast-degradable gelatin nanospheres and fine-tune the control over the release of growth factors. Finally, it was shown that these colloidal composite gels support attachment, spreading and proliferation of cultured stem cells. Based on these results, it can be concluded that proof-of-principle has been obtained for the design of novel advanced composite materials made of nanoscale particulate building blocks which exhibit great potential for use in regenerative medicine.
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Affiliation(s)
- Huanan Wang
- Department of Biomaterials, Radboud University Nijmegen Medical Center, 6525 EX Nijmegen, The Netherlands; Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, 610064 Chengdu, People's Republic of China
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22
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Kim J, Kim HN, Lim KT, Kim Y, Seonwoo H, Park SH, Lim HJ, Kim DH, Suh KY, Choung PH, Choung YH, Chung JH. Designing nanotopographical density of extracellular matrix for controlled morphology and function of human mesenchymal stem cells. Sci Rep 2013; 3:3552. [PMID: 24352057 PMCID: PMC6506445 DOI: 10.1038/srep03552] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 11/29/2013] [Indexed: 12/14/2022] Open
Abstract
Inspired by ultrastructural analysis of ex vivo human tissues as well as the physiological importance of structural density, we fabricated nanogrooves with 1:1, 1:3, and 1:5 spacing ratio (width:spacing, width = 550 nm). In response to the nanotopographical density, the adhesion, migration, and differentiation of human mesenchymal stem cells (hMSCs) were sensitively controlled, but the proliferation showed no significant difference. In particular, the osteo- or neurogenesis of hMSCs were enhanced at the 1:3 spacing ratio rather than 1:1 or 1:5 spacing ratio, implying an existence of potentially optimized nanotopographical density for stem cell function. Furthermore, such cellular behaviors were positively correlated with several cell morphological indexes as well as the expression of integrin β1 or N-cadherin. Our findings propose that nanotopographical density may be a key parameter for the design and manipulation of functional scaffolds for stem cell-based tissue engineering and regenerative medicine.
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Affiliation(s)
- Jangho Kim
- 1] Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, 151-742, Republic of Korea [2]
| | - Hong Nam Kim
- 1] Division of WCU Multiscale Mechanical Design, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 151-742, Republic of Korea [2]
| | - Ki-Taek Lim
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Yeonju Kim
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, 443-721, Republic of Korea
| | - Hoon Seonwoo
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Soo Hyun Park
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Hye Jin Lim
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, 443-721, Republic of Korea
| | - Deok-Ho Kim
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Kahp-Yang Suh
- 1] Division of WCU Multiscale Mechanical Design, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 151-742, Republic of Korea [2]
| | - Pill-Hoon Choung
- Tooth Bioengineering National Research Lab, Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Yun-Hoon Choung
- Department of Otolaryngology, Ajou University School of Medicine, Suwon, 443-721, Republic of Korea
| | - Jong Hoon Chung
- 1] Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, 151-742, Republic of Korea [2] Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151-742, Republic of Korea
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Kuzmenko V, Sämfors S, Hägg D, Gatenholm P. Universal method for protein bioconjugation with nanocellulose scaffolds for increased cell adhesion. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4599-607. [DOI: 10.1016/j.msec.2013.07.031] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 06/26/2013] [Accepted: 07/17/2013] [Indexed: 01/01/2023]
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Kim J, Kim SW, Park S, Lim KT, Seonwoo H, Kim Y, Hong BH, Choung YH, Chung JH. Bacterial cellulose nanofibrillar patch as a wound healing platform of tympanic membrane perforation. Adv Healthc Mater 2013; 2:1525-31. [PMID: 23554356 DOI: 10.1002/adhm.201200368] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 01/10/2013] [Indexed: 11/10/2022]
Abstract
Bacterial cellulose (BC)-based biomaterials on medical device platforms have gained significant interest for tissue-engineered scaffolds or engraftment materials in regenerative medicine. In particular, BC has an ultrafine and highly pure nanofibril network structure and can be used as an efficient wound-healing platform since cell migration into a wound site is strongly meditated by the structural properties of the extracellular matrix. Here, the fabrication of a nanofibrillar patch by using BC and its application as a new wound-healing platform for traumatic tympanic membrane (TM) perforation is reported. TM perforation is a very common clinical problem worldwide and presents as conductive hearing loss and chronic perforations. The BC nanofibrillar patch can be synthesized from Gluconacetobacter xylinus; it is found that the patch contained a network of nanofibrils and is transparent. The thickness of the BC nanofibrillar patch is found to be approximately 10.33 ± 0.58 μm, and the tensile strength and Young's modulus of the BC nanofibrillar patch are 11.85 ± 2.43 and 11.90 ± 0.48 MPa, respectively, satisfying the requirements of an ideal wound-healing platform for TM regeneration. In vitro studies involving TM cells show that TM cell proliferation and migration are stimulated under the guidance of the BC nanofibrillar patch. In vivo animal studies demonstrate that the BC nanofibrillar patch promotes the rate of TM healing as well as aids in the recovery of TM function. These data demonstrate that the BC nanofibrillar patch is a useful wound-healing platform for TM perforation.
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Affiliation(s)
- Jangho Kim
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul, 151-742 Republic of Korea
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Yang W, Xi X, Ran Q, Liu P, Hu Y, Cai K. Influence of the titania nanotubes dimensions on adsorption of collagen: an experimental and computational study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 34:410-6. [PMID: 24268276 DOI: 10.1016/j.msec.2013.09.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 08/30/2013] [Accepted: 09/28/2013] [Indexed: 12/24/2022]
Abstract
To investigate the influence of the titanium nanotube (TiNT) diameters on the adsorption of collagen type I (Col-I), TiNTs with different diameters were prepared with anodization. The adsorption amount of Col-I on the different TiNTs substrates was evaluated by spectrophotometric measurement and immunofluorescence staining, respectively. The results showed that the diameters of TiNTs played a key role in the adsorption process of Col-I. TiNTs with diameters around 100nm displayed a higher adsorption amount and faster adsorption speed than that of 30nm TiNTs. Furthermore, more collagen molecules were aggregated in the tubes of 100nm TiNTs. Molecular dynamics simulation was performed to elucidate the adsorption mechanism. The simulation results confirmed that physical adsorption was the main driving force, including van der Waals force and hydrogen bond between Col-I molecules and TiNTs. The calculated interaction energies indicated that the TiNTs with bigger dimensions had higher interaction energies, thus leading to the higher collagen adsorption.
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Affiliation(s)
- Weihu Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
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Leal-Egaña A, Díaz-Cuenca A, Boccaccini AR. Tuning of cell-biomaterial anchorage for tissue regeneration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:4049-4057. [PMID: 24063035 DOI: 10.1002/adma.201301227] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Which mechanisms mediate cell attachment to biomaterials? What role does the surface charge or wettability play on cell-material anchorage? What are the currently investigated strategies to modify cell-matrix adherence spatiotemporally? Considering the development of scaffolds made of biocompatible materials to temporarily replace the structure and/or function of the extracellular matrix, focus is given to the analysis of the specific (i.e., cell adhesive peptide sequences) and unspecific (i.e., surface charge, wettability) mechanisms mediating cell-matrix interactions. Furthermore, because natural tissue regeneration is characterized by the dynamic attachment/detachment of different cell populations, the design of advanced scaffolds for tissue engineering, based in the spatiotemporal tuning of cell-matrix anchorage is discussed.
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Affiliation(s)
- Aldo Leal-Egaña
- Institute of Biomaterials, Friedrich-Alexander Universität Erlangen Nürnberg, Cauerstraße 6, 91058 Erlangen, Germany.
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Kim J, Kim HN, Lim KT, Kim Y, Pandey S, Garg P, Choung YH, Choung PH, Suh KY, Chung JH. Synergistic effects of nanotopography and co-culture with endothelial cells on osteogenesis of mesenchymal stem cells. Biomaterials 2013; 34:7257-68. [PMID: 23834896 DOI: 10.1016/j.biomaterials.2013.06.029] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Accepted: 06/14/2013] [Indexed: 02/08/2023]
Abstract
Inspired by the aligned nanostructures and co-existence of vascular cells and stem cells in human cancellous bone, we quantitatively investigated the relative contributions of nanotopography and co-culture with human umbilical endothelial cells (HUVECs) to the osteogenesis of human mesenchymal stem cells (hMSCs). Although both nanotopography and co-culture independently enhanced the osteogenesis of hMSCs, osteogenesis was further enhanced by the two factors in combination, indicating the importance of synergistic cues in stem cell engineering. Interestingly, nanotopography provided a larger relative contribution to the osteogenesis of hMSCs than did co-culture with HUVECs. Furthermore, the osteogenesis of hMSCs was also affected by the density of parallel nanogrooves, exhibiting a maximum at a 1:3 spacing ratio, as defined as the ratio of ridge width to groove width. Analysis of (i) biochemical soluble factors, (ii) hMSC-substrate interaction and (iii) hMSC-HUVEC interaction suggests that (ii) and (iii) play a crucial role in mediating osteogenic phenotypes.
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Affiliation(s)
- Jangho Kim
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea
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Lim K, Hexiu J, Kim J, Seonwoo H, Cho WJ, Choung PH, Chung JH. Effects of electromagnetic fields on osteogenesis of human alveolar bone-derived mesenchymal stem cells. BIOMED RESEARCH INTERNATIONAL 2013; 2013:296019. [PMID: 23862141 PMCID: PMC3703802 DOI: 10.1155/2013/296019] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 05/01/2013] [Indexed: 12/25/2022]
Abstract
This study was performed to investigate the effects of extremely low frequency pulsed electromagnetic fields (ELF-PEMFs) on the proliferation and differentiation of human alveolar bone-derived mesenchymal stem cells (hABMSCs). Osteogenesis is a complex series of events involving the differentiation of mesenchymal stem cells to generate new bone. In this study, we examined not merely the effect of ELF-PEMFs on cell proliferation, alkaline phosphatase (ALP) activity, and mineralization of the extracellular matrix but vinculin, vimentin, and calmodulin (CaM) expressions in hABMSCs during osteogenic differentiation. Exposure of hABMSCs to ELF-PEMFs increased proliferation by 15% compared to untreated cells at day 5. In addition, exposure to ELF-PEMFs significantly increased ALP expression during the early stages of osteogenesis and substantially enhanced mineralization near the midpoint of osteogenesis within 2 weeks. ELF-PEMFs also increased vinculin, vimentin, and CaM expressions, compared to control. In particular, CaM indicated that ELF-PEMFs significantly altered the expression of osteogenesis-related genes. The results indicated that ELF-PEMFs could enhance early cell proliferation in hABMSCs-mediated osteogenesis and accelerate the osteogenesis.
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Affiliation(s)
- KiTaek Lim
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea
- Department of Oral and Maxillofacial Surgery and Dental Research Institute, School of Dentistry, Seoul National University, Seoul 110-744, Republic of Korea
| | - Jin Hexiu
- Department of Oral and Maxillofacial Surgery, Tooth Bioengineering National Research Lab, School of Dentistry, Seoul National University, Seoul 110-744, Republic of Korea
| | - Jangho Kim
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea
| | - Hoon Seonwoo
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea
| | - Woo Jae Cho
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea
| | - Pill-Hoon Choung
- Department of Oral and Maxillofacial Surgery, Tooth Bioengineering National Research Lab, School of Dentistry, Seoul National University, Seoul 110-744, Republic of Korea
- Tooth Bioengineering National Research Laboratory of Post BK21, School of Dentistry, Seoul National University, Seoul 110-744, Republic of Korea
| | - Jong Hoon Chung
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-921, Republic of Korea
- Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea
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Kim J, Choi KS, Kim Y, Lim KT, Seonwoo H, Park Y, Kim DH, Choung PH, Cho CS, Kim SY, Choung YH, Chung JH. Bioactive effects of graphene oxide cell culture substratum on structure and function of human adipose-derived stem cells. J Biomed Mater Res A 2013; 101:3520-30. [PMID: 23613168 DOI: 10.1002/jbm.a.34659] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Revised: 02/03/2013] [Accepted: 02/05/2013] [Indexed: 12/22/2022]
Abstract
Nanoscale topography of artificial substrates can greatly influence the fate of stem cells including adhesion, proliferation, and differentiation. Thus the design and manipulation of nanoscale stem cell culture platforms or scaffolds are of great importance as a strategy in stem cell and tissue engineering applications. In this report, we propose that a graphene oxide (GO) film is an efficient platform for modulating structure and function of human adipose-derived stem cells (hASCs). Using a self-assembly method, we successfully coated GO on glass for fabricating GO films. The hASCs grown on the GO films showed increased adhesion, indicated by a large number of focal adhesions, and higher correlation between the orientations of actin filaments and vinculin bands compared to hASCs grown on the glass (uncoated GO substrate). It was also found that the GO films showed the stronger affinity for hASCs than the glass. In addition, the GO film proved to be a suitable environment for the time-dependent viability of hASCs. The enhanced differentiation of hASCs included osteogenesis, adipogenesis, and epithelial genesis, while chondrogenic differentiation of hASCs was decreased, compared to tissue culture polystyrene as a control substrate. The data obtained here collectively demonstrates that the GO film is an efficient substratum for the adhesion, proliferation, and differentiation of hASCs.
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Affiliation(s)
- Jangho Kim
- Department of Biosystems & Biomaterials Science and Engineering, Seoul National University, Seoul 151-742, Republic of Korea
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Kim J, Kim YR, Kim Y, Lim KT, Seonwoo H, Park S, Cho SP, Hong BH, Choung PH, Chung TD, Choung YH, Chung JH. Graphene-incorporated chitosan substrata for adhesion and differentiation of human mesenchymal stem cells. J Mater Chem B 2013; 1:933-938. [DOI: 10.1039/c2tb00274d] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Bishi DK, Mathapati S, Venugopal JR, Guhathakurta S, Cherian KM, Ramakrishna S, Verma RS. Trans-differentiation of human mesenchymal stem cells generates functional hepatospheres on poly(l-lactic acid)-co-poly(ε-caprolactone)/collagen nanofibrous scaffolds. J Mater Chem B 2013; 1:3972-3984. [DOI: 10.1039/c3tb20241k] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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